Update roadmap

Author: theunrepentantgeek

ROADMAP.md

@@ -10,11 +10,11 @@ Our current release plan:
 
 | Version                                                                |   Estimated Release |
 | ---------------------------------------------------------------------- | ------------------: |
-| [2.16.0](https://github.com/Azure/azure-service-operator/milestone/35) |    Mid October 2025 |
-| [2.17.0](https://github.com/Azure/azure-service-operator/milestone/36) | Early December 2025 |
 | [2.18.0](https://github.com/Azure/azure-service-operator/milestone/37) | Early February 2026 |
-| 2.19.0                                                                 |      Mid April 2026 |
-| 2.20.0                                                                 |       Mid June 2026 |
+| [2.19.0](https://github.com/Azure/azure-service-operator/milestone/38) |      Mid April 2026 |
+| [2.20.0](https://github.com/Azure/azure-service-operator/milestone/39) |       Mid June 2026 |
+| 2.21.0                                                                 |     Mid August 2026 |
+| 2.22.0                                                                 |    Mid October 2026 |
 
 Where linked, versions go to a list of feature and bugs that are planned to be included in that release.
 
@@ -32,6 +32,8 @@ Official releases of ASO v2:
 
 | Version                                                                        |     Release Date |                                                                                        |
 | ------------------------------------------------------------------------------ | ---------------: | -------------------------------------------------------------------------------------- |
+| [2.17.0](https://github.com/Azure/azure-service-operator/milestone/36)         |  8 December 2025 | Release cycle was abbreviated to get key items out before the 2025/2026 holiday season |
+| [2.16.0](https://github.com/Azure/azure-service-operator/milestone/35)         |  22 October 2025 |
 | [2.15.0](https://github.com/Azure/azure-service-operator/releases/tag/v2.15.0) |   20 August 2025 |                                                                                        |
 | [2.14.0](https://github.com/Azure/azure-service-operator/releases/tag/v2.14.0) |     24 June 2025 |                                                                                        |
 | [2.13.0](https://github.com/Azure/azure-service-operator/releases/tag/v2.13.0) |    23 April 2025 |                                                                                        |